System and method for simultaneous flicker filtering and oversca

Details System and method for simultaneous flicker filtering and oversca System and method for simultaneous flicker filtering and oversca

1997-09-29

1999-11-23

Grant, Chris

Television

Format conversion

Progressive to interlace

348447, 348910, H04N 701

Patent

active

059909650

ABSTRACT:
An apparatus simultaneously flicker filters and vertically contracts a plurality of original lines to form compensated lines. The device uses a coefficient calculator and a line processor, both controlled by a controller. The coefficient calculator provides compensation coefficients to the line processor. The line processor forms weighted sums of the original lines, with the weightings determined by the compensation coefficients. The compensation coefficients are chosen to simultaneously implement flicker filtering and vertical contraction. Thus, the weighted sums are the compensated lines.

REFERENCES:
patent: 5019904 (1991-05-01), Campbell
patent: 5168358 (1992-12-01), Ishizu et al.
patent: 5510843 (1996-04-01), Keene et al.
patent: 5812203 (1998-09-01), Swan et al.
patent: 5822008 (1998-10-01), Inoue et al.

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